This dataset captures LBN 406, commonly known as the Laughing Skull Nebula, through 17.83 hours of total integration time collected between July 1 and July 23, 2025. The data comprises 214 frames: 131 luminance exposures at 300 seconds each, plus 26 green, 26 blue, and 31 red filtered frames, all at the same exposure length. Imaging was performed with a Sky-Watcher Esprit 120mm telescope paired with a ZWO ASI2600MM Pro camera on an AM5 mount, using Antlia 2-inch filters across all channels.
The dataset is available as a one-time purchase for approximately $17.90 under a CC BY-NC 4.0 license, permitting copying, modification, and redistribution for non-commercial purposes. This combination of narrowband-style LRGB data and substantial luminance integration provides a solid foundation for processing this faint reflection nebula in the northern sky.
Generated from the dataset's metadata; the author's description above is authoritative.